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| author | Evan Jones <evanj@mit.edu> | 2010-12-06 14:17:44 -0500 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2010-12-14 00:14:07 -0500 |
| commit | b63ab1776b3bbf3fe47406d0ca9639b299c4348d (patch) | |
| tree | dc127eaffc1c7c185cceb3595719b60894c36bde /util-internal.h | |
| parent | 18adc3f0159949a628b4e77dfeed857cc4b924a4 (diff) | |
| download | libevent-b63ab1776b3bbf3fe47406d0ca9639b299c4348d.tar.gz | |
EVUTIL_ASSERT: Use sizeof() to avoid "unused variable" warnings.
Diffstat (limited to 'util-internal.h')
| -rw-r--r-- | util-internal.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/util-internal.h b/util-internal.h index 73cd8f8c..cb76ee4f 100644 --- a/util-internal.h +++ b/util-internal.h @@ -52,6 +52,10 @@ extern "C" { /* A good no-op to use in macro definitions. */ #define _EVUTIL_NIL_STMT ((void)0) +/* Suppresses the compiler's "unused variable" warnings for unused assert. */ +#define _EVUTIL_NIL_CONDITION(condition) do { \ + (void)sizeof(condition); \ +} while(0) /* Internal use only: macros to match patterns of error codes in a cross-platform way. We need these macros because of two historical @@ -177,7 +181,7 @@ long _evutil_weakrand(void); /* Replacement for assert() that calls event_errx on failure. */ #ifdef NDEBUG -#define EVUTIL_ASSERT(cond) _EVUTIL_NIL_STMT +#define EVUTIL_ASSERT(cond) _EVUTIL_NIL_CONDITION(cond) #define EVUTIL_FAILURE_CHECK(cond) 0 #else #define EVUTIL_ASSERT(cond) \ |